C
Commander Kinsey
Guest
On Sat, 04 Mar 2023 17:19:51 -0000, John Larkin <jlarkin@highlandsnipmetechnology.com> wrote:
I have used lightbulbs as a limiter for a microwave transformer when doing nasty high voltage stuff.
On Sat, 04 Mar 2023 16:46:32 -0000, \"Commander Kinsey\"
CK1@nospam.com> wrote:
On Thu, 23 Feb 2023 15:46:50 -0000, John Larkin <jlarkin@highlandsnipmetechnology.com> wrote:
On Tue, 21 Feb 2023 09:24:14 -0000, \"NY\" <me@privacy.invalid> wrote:
\"Commander Kinsey\" <CK1@nospam.com> wrote in message
newsp.10pblzyxmvhs6z@ryzen.home...
How annoying. The British fuses you could stick any in any socket, and
you could put any fusewire in each too. My house, I put in what I want.
Complete:
https://maintenance-service.co.uk/_webedit/cached-images/165-0-0-0-10000-10000-708.jpg
Without
fuses:https://flameport.com/electric_museum/old_equipment/white_wylex_reverse_switch_open.jpg
Without covers:https://i.ebayimg.com/images/g/qp4AAOSw3N9fNcsE/s-l300.jpg
(I have one like this, got it 2nd hand). It takes fuses or breakers, no
covers, just have to be careful inserting them. And no I never turn off
the whole bloody thing just to change one fuse.
Can\'t find a picture of the actual fuses seperate.
I was always surprised that all the fuse-wire holders in a UK fuse box were
interchangeable - there was nothing to stop you inserting a 15 A
lighting-circuit fuse in the slot for a 30 A ring-main. Everything would be
fine until someone turned on both a kettle and and electric fire on the same
ring main (thereby drawing more than 13A) and the 15 A fuse would blow.
It would have been better if the fuse holders had been designed to have
different size pins to avoid this. Of course there would still be nothing to
stop someone wiring 30 A wire into a 15 A holder, but that is (probably)
less likely than someone pulling out several fuses and then putting them
back in the wrong locations. At least the fuse holders and sockets in the
fuse box were colour-coded with domino spots which had to match.
The US screw type fuses, basically a light bulb socket, were
interchangable. Older houses around here still have them. One only
needs to keep a stock of 30 amp spares around.
So you could use a lightbulb as a fuse?
I\'m not sure if the screw thread is the same as a light bulb, but they
sure looked the same. I can\'t try it here, as our house was built in
1992 and is all modern. But all the older US screw-in fuses were the
same mechanically, so people tended to install a bigger fuse when one
blew.
An incendescent light bulb would be a good current limiter for low
current circuits; nicely nonlinear and self-resetting. Like a PTC
thermistor, which we use on circuit boards. The disc kind, not
surface-mount.
I have used lightbulbs as a limiter for a microwave transformer when doing nasty high voltage stuff.